October 2012 PMID 22529837

The effects of glycine on subjective daytime performance in partially sleep-restricted healthy volunteers.

Makoto Bannai, Nobuhiro Kawai, Kaori Ono, Keiko Nakahara, Noboru Murakami

Mentions

54
Peak: 6 in Jan 2020
across 5 sources since Jan 2020

Extended reach

605,579
potential audience

Total likes

7,891

Video views

287,180

Mentions per month

Jan 2020 – Dec 2025

Where it's discussed

  • Facebook20 posts
  • X / Twitter16 posts
  • News9 articles
  • Blogs5 articles
  • YouTube4 videos

AI synopsis

What people are saying

The discussions express moderate agreement, highlighting how glycine may help with fatigue and cognitive performance, as seen in comments like 'can be useful for improving cognitive performance' and 'helps improve sleep quality.' Words like 'may' and discussions of specific neuropeptides indicate a balanced tone that is curious but cautious, reflecting a moderate level of engagement and perceived impact.

AgreementModerate agreement

Many discussions acknowledge the positive effects of glycine on sleep and alertness, indicating general support for the findings.

InterestModerate interest

Participants show moderate interest, with comments noting potential benefits and scientific mechanisms without deep skepticism or enthusiasm.

EngagementModerate engagement

Posts include references to specific neuropeptides, sleep quality, and scientific explanations, suggesting a moderate level of engagement.

ImpactModerate impact

The discourse implies that the research could influence ideas about sleep management and supplementation, but without highly urgent language.

Abstract in brief

  • The study found that taking glycine before bed helps improve daytime alertness and reduce fatigue in healthy individuals who had restricted sleep for three nights, based on questionnaires, visual scales, and performance tests.
  • Glycine didn’t significantly affect melatonin levels or circadian clock gene expression but increased certain neuropeptides in the brain's internal clock region, suggesting it influences overall SCN (suprachiasmatic nucleus) function.
  • Overall, glycine appears to enhance daytime performance and alertness by modulating specific neuropeptides in the brain’s circadian center without altering the core circadian rhythm itself.]

Top posts

Most liked on X and Bluesky
ぴし。
@pishi12a · X

@araisan_postdoc 特保ではなく、国の審査の要らない機能性表示食品(最終製品によるヒトでの試験または文献や論文を引用することによって科学的に根拠を示す必要があり)なのだ 根拠としている論文は以下の2つのようなのだ 上はIF0.8位で下は2.7位のようなのだ https://t.co/mFD8ZhxBmx https://t.co/NvuaGPWsLa

Jan 9, 2020 · 19 likes · 8 shares · 634 followers View post →
Agingdoc
@agingdoc1 · X

The effects of glycine on subjective daytime performance in partially sleep-restricted healthy volunteers https://t.co/N87swFa376

May 27, 2025 · 11 likes · 41,774 followers View post →
⚡️
@SolBrah · X

- Glycine helps improve REM sleep and decrease non-REM sleep Glycine affects neuropeptides in the suprachiasmatic nucleus in the hippocampus which regulate the circadian rhythm . Glycine increases VIP, which is critical to the circadian rhythm https://t.co/uRYlXCrkMA

Nov 10, 2021 · 7 likes · 237,141 followers View post →
Naomi Harvey PhD #WearAMask
@Naomi_D_Harvey · X

It also improves feelings of fatigue and improves performance in sleep deprived people https://t.co/iKtE8Gazz5

Jan 3, 2023 · 7 likes · 16,577 followers View post →
Psychic_Brian
@PsychicBrianX · X

The non-essential amino acid, glycine subjectively and objectively improves sleep quality in humans who have difficulty sleeping.-Pubmed #spaces #sleep #insomnia #fatigue #FridayTalk https://t.co/fkfNgHPHoV

Jul 16, 2021 · 5 likes · 2 shares · 5,180 followers View post →
渥美正彦@弱視の睡眠専門医
@hiko_ch119 · X

睡眠不足翌日のパフォーマンスを改善したという報告を1本見つけた。 追試されてないなあ。 他にデータあれば教えてください。 https://t.co/syx9I0EmVn

May 5, 2021 · 4 likes · 5,330 followers View post →

All mentions

Maurício Lima
@dj_surfista · X

A suplementação com glicina pode ser uma estratégia útil para melhorar ocasionalmente a fadiga e o desempenho cognitivo em situações de restrição moderada do sono, comum na vida urbana moderna. https://t.co/JQG9hzhvYt

May 27, 2025 · 1 like · 740 followers View post →
Agingdoc
@agingdoc1 · X

The effects of glycine on subjective daytime performance in partially sleep-restricted healthy volunteers https://t.co/N87swFa376

May 27, 2025 · 11 likes · 41,774 followers View post →
Грета Рокальд
@Grrrrokald · X

@phileologos @softskillpunk https://t.co/4pw5s9p6w6

Aug 24, 2024 · 1,865 followers View post →
Грета Рокальд
@Grrrrokald · X

@oranjimint @softskillpunk Дададада идите в задницу https://t.co/4pw5s9p6w6

Aug 24, 2024 · 1,865 followers View post →
Ismail Aldean
@ismailaldean · X

https://t.co/V8hoheo0x2 https://t.co/mD4naZNaMn

Jan 11, 2023 · 50 followers View post →
Naomi Harvey PhD #WearAMask
@Naomi_D_Harvey · X

It also improves feelings of fatigue and improves performance in sleep deprived people https://t.co/iKtE8Gazz5

Jan 3, 2023 · 7 likes · 16,577 followers View post →
⚡️
@SolBrah · X

- Glycine helps improve REM sleep and decrease non-REM sleep Glycine affects neuropeptides in the suprachiasmatic nucleus in the hippocampus which regulate the circadian rhythm . Glycine increases VIP, which is critical to the circadian rhythm https://t.co/uRYlXCrkMA

Nov 10, 2021 · 7 likes · 237,141 followers View post →
lady_logical
@lady_logical · X

RT @Psychic_Brian33: The non-essential amino acid, glycine subjectively and objectively improves sleep quality in humans who have difficult…

Jul 16, 2021 · 2 shares · 3,365 followers View post →
Psychic_Brian
@PsychicBrianX · X

The non-essential amino acid, glycine subjectively and objectively improves sleep quality in humans who have difficulty sleeping.-Pubmed #spaces #sleep #insomnia #fatigue #FridayTalk https://t.co/fkfNgHPHoV

Jul 16, 2021 · 5 likes · 2 shares · 5,180 followers View post →
渥美正彦@弱視の睡眠専門医
@hiko_ch119 · X

睡眠不足翌日のパフォーマンスを改善したという報告を1本見つけた。 追試されてないなあ。 他にデータあれば教えてください。 https://t.co/syx9I0EmVn

May 5, 2021 · 4 likes · 5,330 followers View post →
神無月ちこ
@chiko_kannaduki · X

RT @pishi12a: @araisan_postdoc 特保ではなく、国の審査の要らない機能性表示食品(最終製品によるヒトでの試験または文献や論文を引用することによって科学的に根拠を示す必要があり)なのだ 根拠としている論文は以下の2つのようなのだ 上はIF0.8位で下…

Jan 10, 2020 · 8 shares · 451 followers View post →
みー(現場✚第一)
@tekelili_me · X

RT @pishi12a: @araisan_postdoc 特保ではなく、国の審査の要らない機能性表示食品(最終製品によるヒトでの試験または文献や論文を引用することによって科学的に根拠を示す必要があり)なのだ 根拠としている論文は以下の2つのようなのだ 上はIF0.8位で下…

Jan 10, 2020 · 8 shares · 756 followers View post →
黒井丸
@gokutubusi354 · X

RT @pishi12a: @araisan_postdoc 特保ではなく、国の審査の要らない機能性表示食品(最終製品によるヒトでの試験または文献や論文を引用することによって科学的に根拠を示す必要があり)なのだ 根拠としている論文は以下の2つのようなのだ 上はIF0.8位で下…

Jan 10, 2020 · 8 shares · 1,327 followers View post →
Placeless
@k1y6k · X

RT @pishi12a: @araisan_postdoc 特保ではなく、国の審査の要らない機能性表示食品(最終製品によるヒトでの試験または文献や論文を引用することによって科学的に根拠を示す必要があり)なのだ 根拠としている論文は以下の2つのようなのだ 上はIF0.8位で下…

Jan 9, 2020 · 8 shares · 1,012 followers View post →
nemo@技研都市
@KEN_BISI · X

RT @pishi12a: @araisan_postdoc 特保ではなく、国の審査の要らない機能性表示食品(最終製品によるヒトでの試験または文献や論文を引用することによって科学的に根拠を示す必要があり)なのだ 根拠としている論文は以下の2つのようなのだ 上はIF0.8位で下…

Jan 9, 2020 · 8 shares · 230 followers View post →
ぴし。
@pishi12a · X

@araisan_postdoc 特保ではなく、国の審査の要らない機能性表示食品(最終製品によるヒトでの試験または文献や論文を引用することによって科学的に根拠を示す必要があり)なのだ 根拠としている論文は以下の2つのようなのだ 上はIF0.8位で下は2.7位のようなのだ https://t.co/mFD8ZhxBmx https://t.co/NvuaGPWsLa

Jan 9, 2020 · 19 likes · 8 shares · 634 followers View post →